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    <h4>图片标签的使用</h4>
    <img src="images/1.jpg" width="100px" height="100px"/>

    <h4>图片显示不出来的时候用文字代替</h4>
    <img src="images/11.jpg" alt="我是爸爸"/>

    <h4>鼠标悬停显示文字</h4>
    <img src="images/1.jpg" title="悬停后我是爸爸" width="100px" height="100px" border="10"/><!--border边框-->
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